Ettore Bugatti built automobiles of uncompromised elegance and sporting competence from 1911 to 1939. He was a mildly eccentric individual and an utterly brilliant Italian engineer; his automobiles were temperamental, technically complex, and very expensive.
Though he clung to mechanical brakes, he experimented with aerodynamics and the use of lightweight metals such as magnesium. During the early 1930s, as the luxury automobile market dwindled, Ettore and his son Jean went to the extreme by producing a very special model - the Type 57.
The Type 57 was introduced in 1934 and was the first new model built under Jean Bugatti's direction and incorporated numerous new features. The dual overhead camshaft eight-cylinder engine had dimensions of 72x100mm resulting in a 3,257cc displacement, with a five-main bearing crankshaft. The camshafts were motivated by helical-tooth gears at the engine's rear with another crankshaft bearing behind them. Side thrust on the valve stems was minimized through the use of finger cam followers.
The Type 57 was the first Bugatti equipped with a transmission fixed to the engine crankcase and a single plate clutch. The four-speed gearbox had constant mesh on the top three gears. The semi-elliptical front setup suspended the hollow tube live axle while reversed quarter-elliptical rear leaf springs were in the back. Cable-operated mechanical drum brakes provided the stopping power.
At the time, the world was in the midst of the Great Depression, soon to be thrust into a war that would halt civilian automobile production, destroy factories, bring about a shortage of raw materials, and bring an end to many legendary automakers. Despite enduring financial shortcomings, the development of the Type 57 continued.
The second-series iteration of the Type 57 was introduced in October of 1936 at the Paris Auto Salon wearing designs by Jean Bugatti and powered by a 3.3-liter dual-overhead-camshaft eight-cylinder installed in a competition-inspired chassis. Along with the second-series Type 57, the Italian company introduced two sporting variants of the model, the Type 57C and the Type 57S.
The Bugatti Type 57C was equipped with a supercharger, thus the 'C' representing 'compressor.' The Roots-type supercharger, driven by the camshaft drive at the rear of the engine, operated at 1.17 times engine speed. The result was a 5-6 psi boost and 160 bhp which - depending on the coachwork - made 120 mph possible.
The Bugatti Type 57S represented 's'urbaissé, or lowered. Although the 57S shared some features with its progenitor, it was virtually a Grand Prix car in touring car guise. The engine received high-compression pistons and a modified crankcase with dry-sump lubrication sourced from the T59 Grand Prix car, including separate scavenge and pressure oil pumps supplied from a 20-liter tank. This meant the high-capacity oil pan was no longer needed. Ignition was by a Scintilla Vertex magneto driven from the left-hand camshaft. With the improvements in place, the engine delivered about 25 more horsepower, and to cope with the increase, the transmission received a reinforced clutch.
Although the mechanical modifications were impressive, it was the low-slung frame design and a shorter wheelbase that provided the fundamental difference between the Type 57S and the standard Type 57. This configuration allowed the rear axle to pass through the frame, and de Ram shock absorbers provided damping, engineered to increase with speed. It used C-channel, gondola-shaped frame rails formed from thinner and lighter material than the Type 57 frame. Due to the lower chassis, the exhaust system used special baffles with a thinner casing and a horizontal row of five small-diameter tailpipes, allowing 10cm of ground clearance.
The vee-shaped radiator gave the Type 57S a distinctive appearance, inspiring some of the most elegant and sporty sculpted designs of the era. Among them was the Jean Bugatti-influenced Atalante Coupe, applied to 17 of the Type 57S chassis. Just 48 examples of the Type 57S chassis were built before the outbreak of hostilities, including two constructed as Type 57SC models, combining the supercharged 200-horsepower engine with the lowered chassis.
Bugatti introduced the Type 57S at the 1935 London Motor Show. The car on display wore fastback Aerolithe coachwork, a style that was eventually refined into the Atlantic coupe. Eventually, three forms of factory coachwork were offered on the Type 57S, including a roadster, the Atalante coupe, or the rare Atlantic coupe. The latter two coupe styles accounted for approximately 20 chassis built through May 1938, when the competition-oriented 57S was quietly discontinued as 57 and 57C road car sales flourished. Coachbuilders who created bodies for the Type 57S include Gangloff, Corsica, Letourneur et Marchand, and Vanvooren of Paris.